Cycle lock



B. F. KOCH.

CYCLE LOCK.

I APPLICATION FILED 0CT.23,1912.

1,194,034. Patented Aug. 8,1916.

. 2 SHEETS-SHEET I.

B. F. KOCH.

CYCLE LOCK. APPLICATION FILED ocf.23,1912.

1 194 034, Patented Aug". 8, 1916.

9 v 5 2 SHEETS-SHEET 2.

Q I 26 HQ 7 26 5 I I; I I5 3 INVENTQR WITNESS S l STS P FFTQE.

.IBEBNARD r. KOCH, or CHICAGO, ILLInoIs, ASSIGNOR r ANGSTEN-KOCH COMPANY, or

CHICAGO, ILLINOIS, A

CORPORATION OF ILLINOIS.

CYCLE-LOCK:

Specification of Letters Patent.

Patented Aug. 8, 1916.

Application filed October 23, 1912. Serial No. 727,389.

To all whom it may concern:

Be it known that I, BERNARD F. Kooina citizen of the United States, residing at same from being stolen or used without aucable.

thority.

While the lock is particularly designed for useon motorcycles and the like, however,

The invention ha afim a objects the it may, be used wherever found appli-.

the drawings. The bar is secured to one fork, as shown to the fork part 2, by a bracket consisting of the parts 6 and 7, which are secured together by screws or bolts 8, clamping the bracket parts together and to the fork. The bar is adjustably and pivotally secured to the bracket part 6 through a member 9. The member 9 is pivotally secured to the bracket, the same being provided with a flange 10, between which and the flange 12 on the bracket part is ar ranged a spring 11. The bar is slidable in the member 9, so that it may be withdrawn from the opposite bracket, as hereafter described, and turned down substantially as indicated by the dotted lines in Fig. 1, When not in operation. The spring maintains the bar firmly in position and prevents rattling production of a device of the kind escribed when the same is in inoperative position,

novel construction, arrangement and com-. bination of parts herem shown and described, and particularly pointed out in the claims.

In the drawings, wherein like reference characters indicate like or corresponding parts, Figure 1 is a front elevation of the device, and a portion of the two front forks of a motorcycle. Fig. 2 is a sectional view taken substantially on line 2, 2 of Fig. -1. Fig. 3 is a side elevation of one of the brackets and lock. Fig. 4 is a sectional view taken substantially on line 4, 4 of Figs. 3 and 5. Fig. 5 is a sectional view taken substantially on line 5, 5 of Fig. 4. Fig. 6 is a view in elevation of the locking bolt removed from the brackets, and Fig. 7 is a perspective view of the cam member 21.

Referring to the drawings, 1 and 2 represent one of the forks of the motorcycle, preferably the front fork, which is carried by the wheel (not shown) in the usual manner. The lock consists of a suitable bar adapted to pass between the spokes on the inner side of the rim, and suitable brackets for securing and locking the bar to the forks. The bar 3 is preferably formed of very hard material, for example case hardened steel, and pivoted at one-end 4, and with a notch 5 proximate the opposite end. This last mentioned end is also preferably rounded, or similarly formed, as shown In and-the vehicle on the road. It will be noted byYeferringtoFigsland 2, that the bracket part 6 is slightly grooved at 34, so that when the bar is turned to inoperative position, it is held in the spring. Secured to the other fork part, as shown to the part 1, is a bracket consisting ofthe parts 14 and 15, which are secured together by bolts or screws 16. The bracket part 14 is extended as at 17 to form a chamber for a spring or looking member 19, having extended ends orarms 20, and is extended at one side at 18 to form a chamber for the insertion of the lock casing 23.

The lock shown is substantially similar to the well known cylinder lock, or the like, of which practically no two locks may be operated by the same key. In the look shown, there is provided a rotatable lock cylinder 22, in which the key 24 may be inserted. When the key is turned the lock cylinder 22 turns with it. On the endof the lock cylinder 22 is arranged a cam member 21, which is positioned between the ends 20 of the spring, so that the same may be spread or separated when desired. The cam member, is provided with a flange 27, and is secured to the cylinder by screws or bolts 26, or their equivalents, one part being preferably recessed, as shown the cylinder 22, to receive a bead .25 on the opposite part, so as to give a more rigid construction. The flange 27 securely looks or prevents the withdrawal of the cylinder 22, when the device is locked up, since it engages with the spring ends 20. As most clearly shown in Fig. 5,

groove by the anism may be employed for controlling and' when the cam member 21 and cylinder 22 are;

rotated, the ends 20 are spread apart, moving the same out of the notch 5 in the bar 3 so that the bolt 3 may be withdrawn and turned down, as indicated in Fig. 1, unlocking the cycle. When the lock is constructed as shown the bar 3 may be inserted in the opening through the bracket part 17 without unlocking the same, as the end of the lock bar spreads the ends 20. As the bolt is pushed through, the ends 20 engage in the notch 5 as soon as the bar is pushed in sufiiciently. It will be noted that the same cannot be unlocked by pushing the bolt through, since the corners of the notch 5 are square, and the bar can only be released by spreading the ends 20. 7

It will be particularly noted by referring to Figs. 1, 2 and 3, that when the lock bar 3 is in looking position, the same substantially covers the heads of the screws 8 and 16, preventing the removal of the brackets from the fork. It will also be noted that since the part of the lock bar is of some length, the bar cahnot be struck down enough, or bent so as to expose the screws holding the bracket bars together. While I have particularly described and show a key lock, I do not wish to be understood as limiting myself to that, as it is obvious that any other locking mechoperating the cam member 21, the-type of lock shown,-however being particularly desirable because of its simplicity, and wellknown security.

Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention, hence I do not wish to be understood as limiting myself to the exact form, construction, arrangement and combination of parts herein shown and descrlbed, or uses mentioned.

What I claim as new and desire to secure by Letters Patent is 1. In a cycle lock of the kind described. and in combination, a pair of brackets, means; for securing said brackets to one of the forks of the cycle, one on each side of the wheel, a. locking bar, means carried by one bracket for slidably and pivotally securing the bar thereto, comprising a member pivotally se cured to the bracket and arranged to slidably carry said bar, said bracket provided with a.

groove across theface of the same, and resilient means arranged between the bracket and said member for maintaining said bar in'said groove when the bar is out of operative position, and key-controlled means carried by the other bracket for locking said bar in operative position, as desired. e 2. A cycle lock of the kind described and in combination, comprising a locking bar, a

pair of supporting brackets therefor, comprising two parts, means arranged at points between the bracket parts and locking bar for securing the bracket parts together, one

bracket provided with a bar carrying m ber pivotally and resiliently secured in operative position on the bracket, Said bar being signedmy-namedrrthepresence of two subscribing witnesses.

BERNARD F. KOCH. Witnesses:

ROY W. HILL, CHARLns I. COBB. 

